DDS_PublicationBuiltinTopicData Struct Reference

Object describing a remote Publication. More...

#include <dds_c_discovery.h>

Data Fields
struct DDS_BuiltinTopicKey_t	key
	DCPS key to distinguish entries. This is used to configure the object ID of the remote DDS_DataWriter.
struct DDS_BuiltinTopicKey_t	participant_key
	DCPS key of the participant to which the DataWriter belongs.
char *	topic_name
	Name of the related DDS_Topic.
char *	type_name
	Name of the type attached to the DDS_Topic.
struct DDS_DeadlineQosPolicy	deadline
	Policy of the corresponding DataWriter.
struct DDS_OwnershipQosPolicy	ownership
	Policy of the corresponding DataWriter.
struct DDS_OwnershipStrengthQosPolicy	ownership_strength
	Policy of the corresponding DataWriter.
struct DDS_LatencyBudgetQosPolicy	latency_budget
	Latency budget policy, LATENCY_BUDGET.
struct DDS_ReliabilityQosPolicy	reliability
	Policy of the corresponding DataWriter.
struct DDS_LivelinessQosPolicy	liveliness
	Policy of the corresponding DataWriter.
struct DDS_DurabilityQosPolicy	durability
	durability policy of the corresponding DataWriter
struct DDS_DestinationOrderQosPolicy	destination_order
	Policy of the corresponding DataWriter.
struct DDS_LocatorSeq	unicast_locator
	<<eXtension>> Custom unicast locators that the endpoint can specify. The default locators will be used if this is not specified.
struct DDS_DataRepresentationQosPolicy	representation
	Data representation policy, DATA_REPRESENTATION.
struct DDS_PartitionQosPolicy	partition
	Policy of the Publisher to which the DataWriter belongs.
struct DDS_UserDataQosPolicy	user_data
	Policy of the corresponding DataWriter.
struct DDS_GroupDataQosPolicy	group_data
	Policy of the Publisher to which the DataWriter belongs.
struct DDS_TopicDataQosPolicy	topic_data
	Policy of the related Topic.

Detailed Description

Object describing a remote Publication.

This object contains all of the information about a remote DDS_DataWriter and its DDS_Publisher that is necessary for matching the remote DDS_DataWriter to a local DDS_DataReader during discovery.

This object is used to pre-configure remote entities for Dynamic Participant/Static Endpoint discovery.

For example: Application A is designed to discover a remote DDS_DataWriter in application B, and that remote DDS_DataWriter has an object ID of 100, and a deadline of three seconds. In Dynamic Participant/Static Endpoint discovery, this discovery data is not sent over the network, so the user must create an instance of a DDS_PublicationBuiltinTopicData structure in application A. The user then must fill in the QoS describing this remote DDS_DataWriter, including the writer's object ID and three-second deadline. Then the user must assert this DDS_PublicationBuiltinTopicData describing the remote entity with the discovery plugin. The pre-configured QoS must match the actual QoS of the remote entity, or communication will not occur.

Field Documentation

key

struct DDS_BuiltinTopicKey_t DDS_PublicationBuiltinTopicData::key

DCPS key to distinguish entries. This is used to configure the object ID of the remote DDS_DataWriter.

participant_key

struct DDS_BuiltinTopicKey_t DDS_PublicationBuiltinTopicData::participant_key

DCPS key of the participant to which the DataWriter belongs.

topic_name

char* DDS_PublicationBuiltinTopicData::topic_name

Name of the related DDS_Topic.

The length of this string is limited to 255 characters.

The memory for this field is managed as described in Conventions.

See also

Conventions

type_name

char* DDS_PublicationBuiltinTopicData::type_name

Name of the type attached to the DDS_Topic.

The length of this string is limited to 255 characters.

The memory for this field is managed as described in Conventions.

See also

Conventions

deadline

struct DDS_DeadlineQosPolicy DDS_PublicationBuiltinTopicData::deadline

Policy of the corresponding DataWriter.

ownership

struct DDS_OwnershipQosPolicy DDS_PublicationBuiltinTopicData::ownership

Policy of the corresponding DataWriter.

ownership_strength

struct DDS_OwnershipStrengthQosPolicy DDS_PublicationBuiltinTopicData::ownership_strength

Policy of the corresponding DataWriter.

latency_budget

struct DDS_LatencyBudgetQosPolicy DDS_PublicationBuiltinTopicData::latency_budget

Latency budget policy, LATENCY_BUDGET.

reliability

struct DDS_ReliabilityQosPolicy DDS_PublicationBuiltinTopicData::reliability

Policy of the corresponding DataWriter.

liveliness

struct DDS_LivelinessQosPolicy DDS_PublicationBuiltinTopicData::liveliness

Policy of the corresponding DataWriter.

durability

struct DDS_DurabilityQosPolicy DDS_PublicationBuiltinTopicData::durability

durability policy of the corresponding DataWriter

destination_order

struct DDS_DestinationOrderQosPolicy DDS_PublicationBuiltinTopicData::destination_order

Policy of the corresponding DataWriter.

unicast_locator

struct DDS_LocatorSeq DDS_PublicationBuiltinTopicData::unicast_locator

<<eXtension>> Custom unicast locators that the endpoint can specify. The default locators will be used if this is not specified.

representation

struct DDS_DataRepresentationQosPolicy DDS_PublicationBuiltinTopicData::representation

Data representation policy, DATA_REPRESENTATION.

partition

struct DDS_PartitionQosPolicy DDS_PublicationBuiltinTopicData::partition

Policy of the Publisher to which the DataWriter belongs.

user_data

struct DDS_UserDataQosPolicy DDS_PublicationBuiltinTopicData::user_data

Policy of the corresponding DataWriter.

group_data

struct DDS_GroupDataQosPolicy DDS_PublicationBuiltinTopicData::group_data

Policy of the Publisher to which the DataWriter belongs.

topic_data

struct DDS_TopicDataQosPolicy DDS_PublicationBuiltinTopicData::topic_data

Policy of the related Topic.